Electronic Function - Makita UH004G Instruction Manual

Reverse button for debris removal
WARNING:
If the entangled branches or
debris cannot be removed by the reverse func-
tion, switch off the tool and remove the battery
cartridge, and then remove the entangled
branches or debris using tools such as pliers.
Failure to switch off the tool and remove the bat-
tery cartridge may result in serious personal injury
from accidental start-up. Removing the entangled
branches or debris by hand may cause an injury,
since the shear blades may move in reaction to
removing them.
This tool has a reverse button to change the direction
of shear blades movement. It is only for removing
branches and debris entangled in the tool.
To reverse the shear blades movement, tap the reverse
button when the shear blades have stopped, then press
the switch lever and pull the switch trigger while press-
ing the lock-off lever. The speed indicators start blink-
ing, and the shear blades move in reverse direction.
To return to regular movement, release the trigger and
wait until the shear blades stop.
► Fig.8: 1. Speed indicator 2. Reverse button
NOTE: If the entangled branches or debris cannot be
removed, release and pull the switch trigger until they
are removed.
NOTE: If you tap the reverse button while the shear
blades are still moving, the tool comes to stop and to
be ready for reverse movement.

Electronic function

The tool is equipped with the electronic functions for
easy operation.
• Constant speed control
The speed control function provides the constant
rotation speed regardless of load conditions.
• Electric brake
This tool is equipped with an electric brake. If the
tool consistently fails to quickly stop the shear
blades after releasing the switch trigger, have the
tool serviced at Makita Authorized Service Center.
• Accidental re-start preventive function
Even if you install the battery cartridge while pull-
ing the switch trigger, the tool does not start. To
start the tool, first release the switch trigger, and
then pull the switch trigger.
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
CAUTION:
When replacing the shear blades,
always wear gloves so that your hands do not
directly contact the blades.
NOTICE:
When replacing the shear blades, do
not wipe off grease from the gear and crank.
Installing or removing the shear
blades
CAUTION:
Attach the blade cover before
removing or installing the shear blades.
You can install 600 mm or 750 mm shear blades to your
tool.
1. Place the tool upside down, and then remove 6
bolts.
► Fig.9: 1. Bolt
2.
Remove the cover and the plate.
► Fig.10: 1. Cover 2. Plate
NOTE: The plate may remain on the cover.
3.
Remove the rod and the bearing.
► Fig.11: 1. Rod 2. Bearing
NOTE: The rod may remain on the cover.
4.
Remove 2 bolts, the felt pad and the sleeves, and
then remove the shear blades.
► Fig.12: 1. Felt pad 2. Bolt 3. Sleeve 4. Shear blades
5. Remove the blade cover.
6. Attach the blade cover to the new shear blades.
7. Adjust the crank so that 2 holes are lined up on
the alignment line.
► Fig.13: 1. Hole 2. Alignment line
8.
Align the protrusions on the shear blades vertically
at the same position.
► Fig.14: 1. Protrusion
9. Attach the felt pad to the shear blades.
► Fig.15: 1. Felt pad
10. Insert the protrusion on the shear blades to the
small hole on the rod, then align the position of the felt
pad with the holes on the tool, and then attach new
sleeves.
► Fig.16: 1. Protrusion 2. Small hole 3. Sleeve 4. Felt
pad
NOTICE:
Apply a small amount of grease to the
inner periphery of the hole of the rod.
NOTICE:
Be careful not to lose the sleeves.
11. Align the holes on the shear blades with the holes
on the tool, and then tighten 2 bolts to fix the shear
blades.
► Fig.17: 1. Bolt 2. Hole
12. Attach the bearing and the rod.
► Fig.18: 1. Rod 2. Small hole 3. Bearing
NOTICE:
Apply a small amount of grease to the
inner periphery of the small hole of the rod.
NOTICE:
Make sure that the protrusion on the
shear blades fits in the small hole on the rod.
13. Attach the plate.
► Fig.19: 1. Protrusion 2. Plate
15 ENGLISH